--- a/spec/std/kernel_spec.cr	2019-02-05 14:51:38.000000000 +0000
+++ b/spec/std/kernel_spec.cr	2019-02-19 19:11:02.129045734 +0000
@@ -232,7 +232,7 @@
     error.should_not contain("Stack overflow")
   end
 
-  it "detects stack overflow on the main stack" do
+  pending "detects stack overflow on the main stack" do
     # This spec can take some time under FreeBSD where
     # the default stack size is 0.5G.  Setting a
     # smaller stack size with `ulimit -s 8192`
--- a/spec/std/socket/tcp_server_spec.cr	2019-02-05 14:51:38.000000000 +0000
+++ b/spec/std/socket/tcp_server_spec.cr	2019-02-19 19:15:23.202756036 +0000
@@ -48,7 +48,7 @@
           end
         end
 
-        it "raises when not binding with reuse_port" do
+        pending "raises when not binding with reuse_port" do
           TCPServer.open(address, 0, reuse_port: true) do |server|
             expect_raises_errno(Errno::EADDRINUSE, {% if flag?(:linux) %}"listen: "{% else %}"bind: "{% end %}) do
               TCPServer.open(address, server.local_address.port) { }